Valve seater and trimmer



VALVEYSEATEH AND-THIMWIER.

APPLICATION FILED PII. 30, |920.

1,386,640., Patented Aug. 9, 1922116L INVENTORS. :mfj

BY weswvq wl Mm ATTORNEY.

.NETE STATE @TNT FFHCE.

JOSIAH W. IVICGUIGAN AND WESLEY vC. ROY, OF DEARBORN, MICHIGAN.

VALVE SEATER AND TRIMMEBJ.

Specification of Letters Patent.

Patented Aug. 99, 1921.

To all whom it 'may concern:

Be it known that we,JosrAH TVMCGUIGAN and WESLEY C. Bor, citizens of the United States, residing at Dearborn, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Valve Seaters and Trimmers, of which the following is a specification.

This invention relates to valve seaters and trimmers, and more particularly to that type of tool which is employed to reseat or true the face of used valves.

An object of the invention is to provide a suitable tool which may readily be used to either true the valve seat or valve itself.

Another object is to provide a valve trimmer which may be carried conveniently in the automobile, and which may be used solely and without the use of any other cumbersome machinery for quickly and inexpensively reseating and facing the used valves.

Other objects will appear as the description proceeds.

In the accompanying drawings- Figure 1 is a side elevation of our invention, shown in position for truing the valve;

Fig. 2 is a side elevation of the invention in position for reseating the valve;

Fig. 3 is a front elevation of the clamp;

Fig. 4 is a front elevation of the valve holding means;

Fig. 5 is an end view of the body or cutter holder, and

Fig. 6 is a side elevation of the pilot or the positioning rod, which holds the cutter blade Within the body.

Like characters of reference are used throughout the following specification to designate corresponding parts.

The valve holding or clamping member 1 is adapted to be made in any suitable size, for the reception of any desired valve stem 2 of the valve 3. Formed integrally with said member 1, are a pair of V-shaped lugs or bearings 4. The body or cutter holding member 5, preferably cylindrical in shape, is supported in said bearings 4, and held in fixed position by means of the bolt 6, which extends transversely through said body 5 through the opening 6, and into a screwthreaded opening 7 in the clamping member 1. At the end of the member 5, is a transverse slot 8, for the reception of the cutter blade 9. The end of the member 5 is also reamed or bored out, to provide an opening orbore for the reception of the pilot or guide rod 10.

At the opposite end of the member 5, a transverse opening 12 is formed, through which is passed the handle or gripping means 13, to be used when the valve seat is being trued. l

A clamp 14 is provided with an opening 15 near its center, for the reception of a ring or bearing 16, which fits over the end of the cutter holding member 5. At one end of said clamp 14, is formed an ntegrally angularly extending arm or guard 17, and at the opposite end of said clamp, an adjusting means or screw 18 is positioned, for engagement with the head of the valve, for adjusting the said valve with relation to the cutter.

When the valve is to be trimmed, the operation is as follows: The valve is placed in the valve clamping member, in such a manner that the face of the valve will abut the cutter blade, and so that the adjusting screw will engage the head of said valve. The adjusting screw is then turned up, so that the face of the valve will rigidly or tightly engage the cutter. The valve clamping member is then placed in a suitable vise (not shown), and a brace or holding means attached to the end of the valve stem, so that it may be readily turned. As the face of the valve is trimmed, the adjust- -ing screw is turned up, until the operation is completed.

When it is desired to use the device as a valve seater, the clamping member, and the clamp are taken od, leaving only the pilot, the blade holding member, and the handle 13. The pilot is inserted in the opening, into which the valve stem usually seats, and the cutter blade lits into and engages the valve seat. The handle is then grasped, and a rotary motion given to it, which will operate to clean the said valve seat.

Thus it will be seen that the one instrument may be used to effectively and efliciently seat and trim the valve, whereas it is usually necessary to have a separate cutter for each operation.

Many minor changes in detail of construction may be resorted to without departure from the Spirit of the invention.

Having thus described our invention what we claim as new and desire to secure by Letters Patent of the United States is 1. A valve seater or trimmer comprising "a body member, valve holding or clamping means, means connecting said body mem* ber and clamping means', a cutter blade in said body member, and means for adjusting the valve with respect to the4 cutterV when in position Within said clamping means. Y

52,.V A valve seater and trimmer comprising cutter blade and seated Within said body member, a detachable errule or ring on said body member" adjacent' said: cutter blade, andv adjustable means for 'positioning the valve With respect to the cutter mounted on said ferrule.

Y 4. A- Valve seater and trimmerfcomprising Y Valve holding.v means, a body member,-a blade slidable Within said body member, a pilot `adjacent said blade vandv seated in said body member, a guard forsaid blade, and adjusting means for positioning the valve With respect to the blade. i H

Intestimony whereof We a'fix our signatures. Y j

JL. W. lVloGrUlGAN.v WESLEYY C.l ROY.4 

